The erotic nurses lick their lips at the sight of husbands visiting for fertility treatments one after another. The husbands endure two weeks without masturbating for the sake of fertility treatments with their beloved wives... but the nurses' hobby is to [acquire for free] the pent-up sperm of these husbands. In other words, it's NTR limited to the fertility treatment period. 'Please release it all inside me for your wife's sake.' 'Look how much fresh, vigorous sperm has come out.' 'Collection is necessary, so if the sperm touches air, it will affect the test results. Please don't let a single drop escape and release it all into the vagina.'
